Carburettor Adjustment; Regular Maintenance; Technical Data - McCulloch Virginia MH542, MH555 Instruction Manual

25cc hedge trimmer
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Your machine is fitted with a highly sensitive
low emission carburettor. We therefore recom-
mend that carburettor adjustments are only
made by an authorised servicing dealer,
equipped with instruments that will ensure
best performance with lowest emission levels.
To adjust the idle speed, however, proceed as fol-
lows:
With engine running and warm, slowly turn screw
'I' clockwise until the engine runs smoothly with a
consistent noise level but without making the
Every 10 work hours
1 Air filter cleaning
Never operate hedgetrimmer without the air fil-
ter, this will damage the engine.
• Remove the 2 air cleaner cover screws.
• Take off the air cleaner cover and remove air
filter from the back of the cover.
• Clean air filter in warm soapy water. DO NOT
USE PETROL.
• Allow filter to dry.
Displacement (cc)
Bore
Stroke (mm)
Engine output din hp/kW
Engine speed at max power
Fuel tank capacity (cc)
Weight (Kg)
Sound pressure level (at the operator's ear) LpAav (dBA) (ISO7917)
Guaranteed noise level LwAav (dBA) (ISO 10884)
Measured sound power level LwAav (dBA) (ISO 10884)
Vibration levels recorded at the operators hand position idle/racing
ENGLISH - 4
G. Carburettor adjustment
blade move.
If the cutting attachment does move or the engine
runs too fast, slowly turn screw 'I' in an anticlock-
wise direction until the correct speed is obtained.
Precise numerical engine speed settings are men-
tioned in the technical detail chart in the front of
the operator's manual.
Warranty may be invalidated from incorrect
carburettor adjustment made by persons
other than an authorised dealer.
H. Regular maintenance
2 Remove spark plug
Every 50 work hours
3 Change spark plug
Long storage

Technical data

• Re-install filter.
Note: replace filter if torn or damaged.
• Clean and adjust electrodes setting.
• Empty fuel tank and run engine dry.
25
35
26
0.9/0.7
8,000 - 9,000
370
4.5/4.8
83/100dB(A)
108
106
4/8 m/s
2

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